greigite
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English
Etymology
From Joseph W. Greig, American mineralogist, + -ite.
Noun
greigite (uncountable)
- (mineralogy) A magnetic form of iron sulfide, Fe2+Fe3+2S4, analogous to magnetite, produced by microorganisms and found in lake sediments; Note: half the iron ions are ferrous and half ferric.
Further reading
- David Barthelmy (1997–2024) “Greigite”, in Webmineral Mineralogy Database.
- “greigite”, in Mindat.org, Hudson Institute of Mineralogy, 2000–2024.
- OED 2006